Mixer impeller



FIG. 1 is a perspective view of a first embodiment for a mixer impeller showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a second side view thereof;

FIG. 6 is a perspective view of a second embodiment for a mixer impeller showing our new design;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof;

FIG. 9 is a side view thereof and; and,

FIG. 10 is a second side view thereof.

The broken lines showing the remainder of the mixer impeller are for environmental purposes only and form no part of the claimed design. 

CLAIM We claim the ornamental design for a mixer impeller, as shown and described. 